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Why would one omit the close tag?
...you are implementing some kind payment gateway, and redirect user to a specific URL after successful confirmation by the payment processor. If some kind of PHP error, even a warning, or an excess line ending happens, the payment may remain unprocessed and the user may still seem unbilled. This is al...
How do you launch the JavaScript debugger in Google Chrome?
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Windows: CTRL-SHIFT-J OR F12
Mac: ⌥-⌘-J
Also available through the wrench menu (Tools > JavaScript Console):
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Select rows which are not present in other table
...nated unless EXCEPT ALL is used.
Typically, you'll want the ALL keyword. If you don't care, still use it because it makes the query faster.
NOT IN
Only good without NULL values or if you know to handle NULL properly. I would not use it for this purpose. Also, performance can deteriorate with big...
Getting activity from context in android
...Application Context to a DialogView, watch it crash, and you will see the difference.
– Sky Kelsey
Aug 1 '12 at 23:10
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Visual Studio 2013 git, only Master branch listed
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Note that this is a little difficult to find; we're working on improving the accessibility of this.
– Edward Thomson
Jul 24 '14 at 16:56
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Can I make a pull request on a gist on GitHub?
...ges in the fork, then share a link to your fork with the original author.
If the original author is keeping a local cloned repository of their gist (see How do you manage your gists on github?) then they can do a pull against your fork as a remote using the gist # (e.g. git://gist.github.com/113127...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
...that is the root cause of the error, so this is actually more helpful that if the compiler just pointed to your function and said "this ain't right, fix it!" (Imagine if CoalesceMax used several generics, and violated the constraint on only one of them - it's more useful to know which generic had it...
Graphviz: How to go from .dot to a graph?
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type: dot -Tps filename.dot -o outfile.ps
If you want to use the dot renderer. There are alternatives like neato and twopi. If graphiz isn't in your path, figure out where it is installed and run it from there.
You can change the output format by varying the value a...
How can I see the specific value of the sql_mode?
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It's only blank for you because you have not set the sql_mode. If you set it, then that query will show you the details:
mysql> SELECT @@sql_mode;
+------------+
| @@sql_mode |
+------------+
| |
+------------+
1 row in set (0.00 sec)
mysql> set sql_mode=ORACLE;
Query ...
Create an empty object in JavaScript with {} or new Object()?
There are two different ways to create an empty object in JavaScript:
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